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September observing guide
The following describes objects in our night sky for September and is especially written for beginning observers. Astronomy from the city...
Andrew Wood
Aug 30, 20255 min read
Centennial Park outreach for Science Week 2025
On the weekend of the 16-17 th August the Sydney City Skywatchers (SCS) ran their annual telescope viewing sessions for the public at...
Dirk Goës
Aug 21, 20251 min read
The new Australian Decadal Plan for Astronomy
The cover of the new Australian Astronomy Decadal Plan. Cover artwork: Seven Sisters, Noeleen Hamlett, Wajarri Yamaji ( Credit :...
Dirk Goës
Jul 29, 20253 min read
Common Envelope Evolution
The evolution of interacting binary stars
Dirk Goës
Jun 18, 20259 min read
Interacting binary stars
Stars that pull each other apart, merge, and explode A still from an animation simulating a thermonuclear explosion occurring on the...
Dirk Goës
Apr 2, 20257 min read
Pretty as a pink partially eclipsed Moon!
Reports of the total lunar eclipse which occurred on 14 March 2025, as seen from eastern Australia.
sydneycityskywatch
Mar 14, 20253 min read
Sydney City Skywatchers 130-year Anniversary
130th anniversary of astronomy society highlights
Andrew Wood
Mar 9, 20252 min read
Louise Webster (1941-1990): the first astronomer to identify a black hole.
Celebrating Australian women in astronomy on International Womens Day
Toner Stevenson
Mar 7, 20255 min read
Solar activity this month: February 2025
Our active Sun in February 2025
Toner Stevenson
Feb 23, 20252 min read
Bessel to Gaia: Parallax comes full circle
Königsberg Observatory (left) where Friedrich Wilhelm Bessel made the first successful distance measurement to a star other than the Sun...
Dirk Goës
Feb 17, 20255 min read
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